Sharp el-9900c Guía De Operación

With this tool, linear equations containing up to 6 unknown values

(i.e., ax 

) can be solved.

1. Press 

B to select B SYSTEM, and select the number of

unknown values. For example, press 

2 if values x and y

are unknown.

2. In the next screen, an

equation ax 

 is

displayed, with an entry

table for the known values —

, b, and c.

3. Enter 2 sets of the known

values, as shown in the

figure. Pressing 

E at

each entry will store the

value, and sets the cursor at

the next entry area.

4. When done entering the

known values, press 

@

h. The calculation result
will be displayed on the next

screen.

Pressing 

C will bring back the previous entry screen.

5. To go back to the TOOL menu to perform another calculation,

press 

@ V.

This tool is designed so that quadratic (ax

) or cubic

(ax

) equation may be solved.

1. Press 

C to select C

POLY, and select the degree.

For example, press 

2 if

a quadratic equation is

desired.

2. In the next screen, an equation ax

 is displayed,

with an entry area for the known values — a, b, and c.